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Wang S, Wen X, Fan Z, Ding X, Wang Q, Liu Z, Yu W. Research advancements on nerve guide conduits for nerve injury repair. Rev Neurosci 2024; 35:627-637. [PMID: 38517315 DOI: 10.1515/revneuro-2023-0093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/19/2023] [Indexed: 03/23/2024]
Abstract
Peripheral nerve injury (PNI) is one of the most serious causes of disability and loss of work capacity of younger individuals. Although PNS has a certain degree of regeneration, there are still challenges like disordered growth, neuroma formation, and incomplete regeneration. Regarding the management of PNI, conventional methods such as surgery, pharmacotherapy, and rehabilitative therapy. Treatment strategies vary depending on the severity of the injury. While for the long nerve defect, autologous nerve grafting is commonly recognized as the preferred surgical approach. Nevertheless, due to lack of donor sources, neurological deficits and the low regeneration efficiency of grafted nerves, nerve guide conduits (NGCs) are recognized as a future promising technology in recent years. This review provides a comprehensive overview of current treatments for PNI, and discusses NGCs from different perspectives, such as material, design, fabrication process, and composite function.
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Affiliation(s)
- Shoushuai Wang
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Xinggui Wen
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Zheyuan Fan
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Xiangdong Ding
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Qianqian Wang
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Zhongling Liu
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Wei Yu
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
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2
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Cortez I, Gaffney CM, Vichare R, Crelli CV, Liu L, Lee E, Edralin J, Nichols JM, Pham HV, Mehdi S, Janjic JM, Shepherd AJ. Neuromuscular Polytrauma Pain is Resolved by Macrophage COX-2 Nanoimmunomodulation. Int J Nanomedicine 2024; 19:7253-7271. [PMID: 39050880 PMCID: PMC11268785 DOI: 10.2147/ijn.s460418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 07/10/2024] [Indexed: 07/27/2024] Open
Abstract
Soft tissue injuries often involve muscle and peripheral nerves and are qualitatively distinct from single-tissue injuries. Prior research suggests that damaged innervation compromises wound healing. To test this in a traumatic injury context, we developed a novel mouse model of nerve and lower limb polytrauma, which features greater pain hypersensitivity and more sustained macrophage infiltration than either injury in isolation. We also show that macrophages are crucial mediators of pain hypersensitivity in this model by delivering macrophage-targeted nanoemulsions laden with the cyclooxygenase-2 (COX-2) inhibitor celecoxib. This treatment was more effective in males than females, and more effective when delivered 3 days post-injury than 7 days post-injury. The COX-2 inhibiting nanoemulsion drove widespread anti-inflammatory changes in cytokine expression in polytrauma-affected peripheral nerves. Our data shed new light on the modulation of inflammation by injured nerve input and demonstrate macrophage-targeted nanoimmunomodulation can produce rapid and sustained pain relief following complex injuries.
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Affiliation(s)
- Ibdanelo Cortez
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Caitlyn M Gaffney
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Riddhi Vichare
- School of Pharmacy, Duquesne University, Pittsburgh, PA, 15282, USA
| | - Caitlin V Crelli
- School of Pharmacy, Duquesne University, Pittsburgh, PA, 15282, USA
| | - Lu Liu
- School of Pharmacy, Duquesne University, Pittsburgh, PA, 15282, USA
| | - Eric Lee
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jules Edralin
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - James M Nichols
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Hoang Vu Pham
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Syed Mehdi
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jelena M Janjic
- School of Pharmacy, Duquesne University, Pittsburgh, PA, 15282, USA
| | - Andrew J Shepherd
- Laboratories of Neuroimmunology, Department of Symptom Research, the University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
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3
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Alamri OA, Qusti S, Balgoon M, Ageeli AA, Al-Marhaby FA, Alosaimi AM, Jowhari MA, Saeed A. The role of MoS 2 QDs coated with DSPE-PEG-TPP in the protection of protein secondary structure of the brain tissues in an Alzheimer's disease model. Int J Biol Macromol 2024; 255:128522. [PMID: 38040141 DOI: 10.1016/j.ijbiomac.2023.128522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/12/2023] [Accepted: 11/28/2023] [Indexed: 12/03/2023]
Abstract
In this investigation, we have explored the protective capacity of MoS2 QDs coated with 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethyleneglycol) -2000] (DSPE-PEG) linked with (3-carboxypropyl) triphenylphosphonium-bromide (TPP), on the secondary structure of proteins in Alzheimer's disease (AD)-affected brain tissues. Using a cohort of fifteen male SWR/J mice, we establish three groups: a control group, a second group induced with AD through daily doses of AlCl3 and D-galactose for 49 consecutive days, and a third group receiving the same AD-inducing doses but treated with DSPE-PEG-TPP-MoS2 QDs. Brain tissues are meticulously separated from the skull, and their molecular structures are analyzed via FTIR spectroscopy. Employing the curve fitting method on the amide I peak, we delve into the nuances of protein secondary structure. The FTIR analysis reveals a marked increase in β-sheet structures and a concurrent decline in turn and α-helix structures in the AD group in comparison to the control group. Notably, no statistically significant differences emerge between the treated and control mice. Furthermore, multivariate analysis of the FTIR spectral region, encompassing protein amide molecular structures, underscores a remarkable similarity between the treated and normal mice. This study elucidates the potential of DSPE-PEG-TPP-MoS2 QDs in shielding brain tissue proteins against the pathogenic influences of AD.
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Affiliation(s)
- Ohoud Abdulaziz Alamri
- Department of Medical Laboratory, King Fahad Armed Forces Hospital, Jeddah 23311, Saudi Arabia; Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Safaa Qusti
- Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Maha Balgoon
- Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abeer A Ageeli
- Department of Chemistry, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia
| | - F A Al-Marhaby
- Department of Physics, Al-Qunfudhah University College, Umm Al-Qura University, Makkah 24230, Saudi Arabia
| | - Abeer M Alosaimi
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia
| | - Mohammed A Jowhari
- Medical Physics Department, Jazan Specialized Hospital, Ministry of Health, Jazan Health Affairs, Jazan 45142, Saudi Arabia
| | - Abdu Saeed
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Physics, Thamar University, Thamar 87246, Yemen.
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4
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Ronchi G, Fregnan F, Muratori L, Gambarotta G, Raimondo S. Morphological Methods to Evaluate Peripheral Nerve Fiber Regeneration: A Comprehensive Review. Int J Mol Sci 2023; 24:1818. [PMID: 36768142 PMCID: PMC9915436 DOI: 10.3390/ijms24031818] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/06/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
Regeneration of damaged peripheral nerves remains one of the main challenges of neurosurgery and regenerative medicine, a nerve functionality is rarely restored, especially after severe injuries. Researchers are constantly looking for innovative strategies for tackling this problem, with the development of advanced tissue-engineered nerve conduits and new pharmacological and physical interventions, with the aim of improving patients' life quality. Different evaluation methods can be used to study the effectiveness of a new treatment, including functional tests, morphological assessment of regenerated nerve fibers and biomolecular analyses of key factors necessary for good regeneration. The number and diversity of protocols and methods, as well as the availability of innovative technologies which are used to assess nerve regeneration after experimental interventions, often makes it difficult to compare results obtained in different labs. The purpose of the current review is to describe the main morphological approaches used to evaluate the degree of nerve fiber regeneration in terms of their usefulness and limitations.
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Affiliation(s)
| | | | | | | | - Stefania Raimondo
- Department of Clinical and Biological Sciences & Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Orbassano, 10043 Torino, TO, Italy
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Shabani L, Abbasi M, Azarnew Z, Amani AM, Vaez A. Neuro-nanotechnology: diagnostic and therapeutic nano-based strategies in applied neuroscience. Biomed Eng Online 2023; 22:1. [PMID: 36593487 PMCID: PMC9809121 DOI: 10.1186/s12938-022-01062-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/23/2022] [Indexed: 01/03/2023] Open
Abstract
Artificial, de-novo manufactured materials (with controlled nano-sized characteristics) have been progressively used by neuroscientists during the last several decades. The introduction of novel implantable bioelectronics interfaces that are better suited to their biological targets is one example of an innovation that has emerged as a result of advanced nanostructures and implantable bioelectronics interfaces, which has increased the potential of prostheses and neural interfaces. The unique physical-chemical properties of nanoparticles have also facilitated the development of novel imaging instruments for advanced laboratory systems, as well as intelligently manufactured scaffolds and microelectrodes and other technologies designed to increase our understanding of neural tissue processes. The incorporation of nanotechnology into physiology and cell biology enables the tailoring of molecular interactions. This involves unique interactions with neurons and glial cells in neuroscience. Technology solutions intended to effectively interact with neuronal cells, improved molecular-based diagnostic techniques, biomaterials and hybridized compounds utilized for neural regeneration, neuroprotection, and targeted delivery of medicines as well as small chemicals across the blood-brain barrier are all purposes of the present article.
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Affiliation(s)
- Leili Shabani
- grid.412571.40000 0000 8819 4698Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Milad Abbasi
- grid.412571.40000 0000 8819 4698Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zeynab Azarnew
- grid.412571.40000 0000 8819 4698Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Mohammad Amani
- grid.412571.40000 0000 8819 4698Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Vaez
- grid.412571.40000 0000 8819 4698Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
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6
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Kushwaha A, Goswami L, Kim BS. Nanomaterial-Based Therapy for Wound Healing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:618. [PMID: 35214947 PMCID: PMC8878029 DOI: 10.3390/nano12040618] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 02/06/2023]
Abstract
Poor wound healing affects millions of people globally, resulting in increased mortality rates and associated expenses. The three major complications associated with wounds are: (i) the lack of an appropriate environment to enable the cell migration, proliferation, and angiogenesis; (ii) the microbial infection; (iii) unstable and protracted inflammation. Unfortunately, existing therapeutic methods have not solved these primary problems completely, and, thus, they have an inadequate medical accomplishment. Over the years, the integration of the remarkable properties of nanomaterials into wound healing has produced significant results. Nanomaterials can stimulate numerous cellular and molecular processes that aid in the wound microenvironment via antimicrobial, anti-inflammatory, and angiogenic effects, possibly changing the milieu from nonhealing to healing. The present article highlights the mechanism and pathophysiology of wound healing. Further, it discusses the current findings concerning the prospects and challenges of nanomaterial usage in the management of chronic wounds.
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Affiliation(s)
| | | | - Beom Soo Kim
- Department of Chemical Engineering, Chungbuk National University, Cheongju 28644, Korea; (A.K.); (L.G.)
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Braga Silva J, Chammas M, Chammas PE, Andrade R, Hochhegger B, Leal BLM. Evaluation of peripheral nerve injury by magnetic resonance neurography: A systematic review. HAND SURGERY & REHABILITATION 2021; 41:7-13. [PMID: 34543765 DOI: 10.1016/j.hansur.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/28/2021] [Accepted: 09/07/2021] [Indexed: 12/01/2022]
Abstract
In view of the limitations of current methods for assessing peripheral nerve injury, there is a need for technical innovations to improve diagnosis, surgical approach and postoperative monitoring. The objective of this study was to conduct a systematic review to analyze the applicability of magnetic resonance neurography in peripheral nerve injuries. The present systematic review focused on the use of magnetic resonance neurography. The literature was searched in the PUBMED, Cochrane Library and Virtual Health Library databases using the PICO method. One hundred sixty-two articles were retrieved with the terms "magnetic resonance imaging" and "peripheral nerve injury", with a filter for the last 10 years (2010-2020). Nineteen were eligible for the review. Most were reviews, with few systematic reviews of randomized controlled trials. Although not included in the recommended protocol, MRI is increasingly used due to its numerous advantages: it is non-invasive, providing objective visualization of neural and perineural tissues, fascicular representation as a result of high resolution, and objective visualization of serial interval images of successful treatment. This is one of the first systematic reviews of the literature regarding the use of magnetic resonance imaging neurography to assess peripheral nerve injury, highlighting the need to implement new imaging techniques in this field of medical practice.
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Affiliation(s)
- Jefferson Braga Silva
- School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Av. Ipiranga 6681, Partenon, Porto Alegre RS, 90619-900, Brazil; Service of Hand Surgery and Reconstructive Microsurgery, São Lucas Hospital, Centro Clinico PUCRS, Av. Ipiranga 6690, Suite 216, Porto Alegre, RS, 90610-000, Brazil.
| | - Michel Chammas
- Service of hand surgery and peripheral nerve surgery, SOS Main, Hospital Lapeyronie, CHU Montpellier, 371 Avenue du Doyen Gaston Giraud, 34090, Montpellier, France
| | - Pierre-Emmanuel Chammas
- Service of hand surgery and peripheral nerve surgery, SOS Main, Hospital Lapeyronie, CHU Montpellier, 371 Avenue du Doyen Gaston Giraud, 34090, Montpellier, France
| | - Rubens Andrade
- Radiology Service, São Lucas Hospital, Brain Institute, São Lucas Hospital, Centro Clinico PUCRS, Av. Ipiranga 6690, Porto Alegre, RS, 90610-000, Brazil
| | - Bruno Hochhegger
- Radiology Service, São Lucas Hospital, Brain Institute, São Lucas Hospital, Centro Clinico PUCRS, Av. Ipiranga 6690, Porto Alegre, RS, 90610-000, Brazil
| | - Bruna Leiria Meréje Leal
- School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Av. Ipiranga 6681, Partenon, Porto Alegre RS, 90619-900, Brazil
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Wang M, Huang X, Zheng H, Tang Y, Zeng K, Shao L, Li L. Nanomaterials applied in wound healing: Mechanisms, limitations and perspectives. J Control Release 2021; 337:236-247. [PMID: 34273419 DOI: 10.1016/j.jconrel.2021.07.017] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 12/20/2022]
Abstract
Internal and external factors cause various types of wounds on the skin. Infections, nonhealing chronic wounds, and aesthetic and functional recovery all cause challenges for clinicians. The development of nanotechnology in biomedicine has brought many new materials, methods and therapeutic targets for the treatment of wounds, which are believed to have great prospects. In this work, the nanomaterials applied in different stages to promote wound healing and systematically expounded their mechanisms were reviewed. Then, the difficulties and defects of the present research and suggested methods for improvement were pointed out. Moreover, based on the current application status of nanomaterials in wound treatment, some new ideas for subsequent studies were proposed and the feasibility of intelligent healing by real-time monitoring, precision regulation, and signal transmission between electronic signals and human nerve signals in the future were discussed. This review will provide valuable directions and spark new thoughts for researchers.
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Affiliation(s)
- Menglei Wang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Xiaowen Huang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Huanxin Zheng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yingmei Tang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Kang Zeng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Longquan Shao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Li Li
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China.
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Kumar R, Chhikara BS, Gulia K, Chhillar M. Review of nanotheranostics for molecular mechanisms underlying psychiatric disorders and commensurate nanotherapeutics for neuropsychiatry: The mind knockout. Nanotheranostics 2021; 5:288-308. [PMID: 33732601 PMCID: PMC7961125 DOI: 10.7150/ntno.49619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 12/12/2022] Open
Abstract
Bio-neuronal led psychiatric abnormalities transpired by the loss of neuronal structure and function (neurodegeneration), pro-inflammatory cytokines, microglial dysfunction, altered neurotransmission, toxicants, serotonin deficiency, kynurenine pathway, and excessively produced neurotoxic substances. These uncontrolled happenings in the etiology of psychiatric disorders initiate further changes in neurotransmitter metabolism, pathologic microglial, cell activation, and impaired neuroplasticity. Inflammatory cytokines, the outcome of dysfunctional mitochondria, dysregulation of the immune system, and under stress functions of the brain are leading biochemical factors for depression and anxiety. Nanoscale drug delivery platforms, inexpensive diagnostics using nanomaterials, nano-scale imaging technologies, and ligand-conjugated nanocrystals used for elucidating the molecular mechanisms and foremost cellular communications liable for such disorders are highly capable features to study for efficient diagnosis and therapy of the mental illness. These theranostic tools made up of multifunctional nanomaterials have the potential for effective and accurate diagnosis, imaging of psychiatric disorders, and are at the forefront of leading technologies in nanotheranostics openings field as they can collectively and efficiently target the stimulated territories of the cerebellum (cells and tissues) through molecular-scale interactions with higher bioavailability, and bio-accessibility. Specifically, the nanoplatforms based neurological changes are playing a significant role in the diagnosis of psychiatric disorders and portraying the routes of functional restoration of mental disorders by newer imaging tools at nano-level in all directions. Because of these nanotherapeutic platforms, the molecules of nanomedicine can penetrate the Blood-Brain Barrier with an increased half-life of drug molecules. The discoveries in nanotheranostics and nanotherapeutics inbuilt unique multi-functionalities are providing the best multiplicities of novel nanotherapeutic potentialities with no toxicity concerns at the level of nano range.
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Affiliation(s)
- Rajiv Kumar
- NIET, National Institute of Medical Science, India
| | - Bhupender S Chhikara
- Department of Chemistry, Aditi Mahavidyalaya, University of Delhi. Delhi, 110039, India
| | - Kiran Gulia
- Materials and Manufacturing, School of Engineering, University of Wolverhampton, England, TF2 9NN, UK
| | - Mitrabasu Chhillar
- Institute of Nuclear Medicine and Allied Sciences (INMAS) Brig. S. K. Mazumdar Marg Delhi 110054, India
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10
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Immunological considerations and concerns as pertinent to whole eye transplantation. Curr Opin Organ Transplant 2019; 24:726-732. [PMID: 31689262 DOI: 10.1097/mot.0000000000000713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE OF REVIEW The advent of clinical vascularized composite allotransplantation (VCA), offers hope for whole eye transplantation (WET) in patients with devastating vison loss that fails or defies current treatment options. Optic nerve regeneration and reintegration remain the overarching hurdles to WET. However, the realization of WET may indeed be limited by our lack of understanding of the singular immunological features of the eye as pertinent to graft survival and functional vision restoration in the setting of transplantation. RECENT FINDINGS Like other VCA, such as the hand or face, the eye includes multiple tissues with distinct embryonic lineage and differential antigenicity. The ultimate goal of vision restoration through WET requires optimal immune modulation of the graft for successful optic nerve regeneration. Our team is exploring barriers to our understanding of the immunology of the eye in the context of WET including the role of immune privilege and lymphatic drainage on rejection, as well as the effects ischemia, reperfusion injury and rejection on optic nerve regeneration. SUMMARY Elucidation of the unique immunological responses in the eye and adnexa after WET will provide foundational clues that will help inform therapies that prevent immune rejection without hindering optic nerve regeneration or reintegration.
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Janjic JM, Gorantla VS. Nanomedicine: new hope for transplant paradigms lost? Nanomedicine (Lond) 2019; 14:2645-2649. [PMID: 31674278 DOI: 10.2217/nnm-2019-0338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Jelena M Janjic
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, USA.,Chronic Pain Research Consortium, Duquesne University, Pittsburgh, PA 15282, USA
| | - Vijay S Gorantla
- Wake Forest University Health Sciences, Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC 27101, USA
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12
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Luzhansky ID, Sudlow LC, Brogan DM, Wood MD, Berezin MY. Imaging in the repair of peripheral nerve injury. Nanomedicine (Lond) 2019; 14:2659-2677. [PMID: 31612779 PMCID: PMC6886568 DOI: 10.2217/nnm-2019-0115] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/20/2019] [Indexed: 12/25/2022] Open
Abstract
Surgical intervention followed by physical therapy remains the major way to repair damaged nerves and restore function. Imaging constitutes promising, yet underutilized, approaches to improve surgical and postoperative techniques. Dedicated methods for imaging nerve regeneration will potentially provide surgical guidance, enable recovery monitoring and postrepair intervention, elucidate failure mechanisms and optimize preclinical procedures. Herein, we present an outline of promising innovations in imaging-based tracking of in vivo peripheral nerve regeneration. We emphasize optical imaging because of its cost, versatility, relatively low toxicity and sensitivity. We discuss the use of targeted probes and contrast agents (small molecules and nanoparticles) to facilitate nerve regeneration imaging and the engineering of grafts that could be used to track nerve repair. We also discuss how new imaging methods might overcome the most significant challenges in nerve injury treatment.
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Affiliation(s)
- Igor D Luzhansky
- Department of Radiology, Washington University School of Medicine, St Louis, MO 63110, USA
- The Institute of Materials Science & Engineering, Washington University, St Louis, MO 63130, USA
| | - Leland C Sudlow
- Department of Radiology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - David M Brogan
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Matthew D Wood
- Department of Surgery, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Mikhail Y Berezin
- Department of Radiology, Washington University School of Medicine, St Louis, MO 63110, USA
- The Institute of Materials Science & Engineering, Washington University, St Louis, MO 63130, USA
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13
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Carvalho CR, Silva-Correia J, Oliveira JM, Reis RL. Nanotechnology in peripheral nerve repair and reconstruction. Adv Drug Deliv Rev 2019; 148:308-343. [PMID: 30639255 DOI: 10.1016/j.addr.2019.01.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/20/2018] [Accepted: 01/05/2019] [Indexed: 02/07/2023]
Affiliation(s)
- Cristiana R Carvalho
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
| | - Joana Silva-Correia
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joaquim M Oliveira
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal.
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Romeo-Guitart D, Casas C. Network-centric medicine for peripheral nerve injury: Treating the whole to boost endogenous mechanisms of neuroprotection and regeneration. Neural Regen Res 2019; 14:1122-1128. [PMID: 30804234 PMCID: PMC6425822 DOI: 10.4103/1673-5374.251187] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Peripheral nerve injuries caused by accidents may lead to paralysis, sensory disturbances, anaesthesia, and lack of autonomic functions. Functional recovery after disconnection of the motoneuronal soma from target tissue with proximal rupture of axons is determined by several factors: motoneuronal soma viability, proper axonal sprouting across inhibitory zones and elongation toward specific muscle, effective synapse contact rebuilding, and prevention of muscle atrophy. Therapies, such as adjuvant drugs with pleiotropic effects, that promote functional recovery after peripheral nerve injury are needed. Toward this aim, we designed a drug discovery workflow based on a network-centric molecular vision using unbiased proteomic data and neural artificial computational tools. Our focus is on boosting intrinsic capabilities of neurons for neuroprotection; this is in contrast to the common approach based on suppression of a pathobiological pathway known to be associated with disease condition. Using our workflow, we discovered neuroheal, a combination of two repurposed drugs that promotes motoneuronal soma neuroprotection, is anti-inflammatory, enhances axonal regeneration after axotomy, and reduces muscle atrophy. This drug discovery workflow has thus yielded a therapy that is close to its clinical application.
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Affiliation(s)
- David Romeo-Guitart
- Institut de Neurociències (INc) and Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona (UAB) & Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Barcelona, Spain
| | - Caty Casas
- Institut de Neurociències (INc) and Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona (UAB) & Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Barcelona, Spain
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